#define _CRT_SECURE_NO_WARNINGS 
#include <stdio.h>

int main() {
    double a, b;
    scanf("%lf%lf", &a, &b);
    double q;
    q = a / (b * b);
    if (q >= 18.5 && q <= 23.9)
        printf("Normal");
    else printf("Abnormal");
    return 0;
}